The SMOK Mini V2 Coil is specially designed for the SMOK TFV Mini V2 Tank. There are 3 colors and 3 different coil resistance for your selection. The Mini V2 A1 0.17ohm mesh coil has a big hole inside. And the design is simple yet comes with excellent effect. A2 0.2ohm coil has two holes inside, and both of the holes have cobra mesh covered. While A3 0.15 coil has three separate heating coils inside, combining with 3 larger airflow slots at the bottom of the tank. All SMOK Mini V2 coils can bring you unprecedented huge & thick vapor! 3 pieces each pack.